Remove Samsung specific clock support in Exynos4 and migrate to use
common clock framework.

Cc: Kukjin Kim <kgene....@samsung.com>
Signed-off-by: Thomas Abraham <thomas.abra...@linaro.org>
---
 arch/arm/mach-exynos/Kconfig               |    1 +
 arch/arm/mach-exynos/Makefile              |    3 -
 arch/arm/mach-exynos/clock-exynos4.h       |   35 -----
 arch/arm/mach-exynos/clock-exynos4210.c    |  188 ---------------------------
 arch/arm/mach-exynos/clock-exynos4212.c    |  192 ----------------------------
 arch/arm/mach-exynos/common.c              |   27 +---
 arch/arm/mach-exynos/common.h              |   17 +++
 arch/arm/mach-exynos/mach-armlex4210.c     |    1 -
 arch/arm/mach-exynos/mach-exynos4-dt.c     |    1 -
 arch/arm/mach-exynos/mach-nuri.c           |    1 -
 arch/arm/mach-exynos/mach-origen.c         |    1 -
 arch/arm/mach-exynos/mach-smdk4x12.c       |    1 -
 arch/arm/mach-exynos/mach-smdkv310.c       |    1 -
 arch/arm/mach-exynos/mach-universal_c210.c |    1 -
 arch/arm/plat-samsung/Kconfig              |    4 +-
 15 files changed, 27 insertions(+), 447 deletions(-)
 delete mode 100644 arch/arm/mach-exynos/clock-exynos4.h
 delete mode 100644 arch/arm/mach-exynos/clock-exynos4210.c
 delete mode 100644 arch/arm/mach-exynos/clock-exynos4212.c

diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 91d5b6f..ba2fc5c 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -15,6 +15,7 @@ config ARCH_EXYNOS4
        bool "SAMSUNG EXYNOS4"
        default y
        select HAVE_SMP
+       select COMMON_CLK
        select MIGHT_HAVE_CACHE_L2X0
        help
          Samsung EXYNOS4 SoCs based systems
diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index 7e53a3a..59a9143 100644
--- a/arch/arm/mach-exynos/Makefile
+++ b/arch/arm/mach-exynos/Makefile
@@ -13,9 +13,6 @@ obj-                          :=
 # Core
 
 obj-$(CONFIG_ARCH_EXYNOS)      += common.o
-obj-$(CONFIG_ARCH_EXYNOS4)     += clock-exynos4.o
-obj-$(CONFIG_CPU_EXYNOS4210)   += clock-exynos4210.o
-obj-$(CONFIG_SOC_EXYNOS4212)   += clock-exynos4212.o
 obj-$(CONFIG_SOC_EXYNOS5250)   += clock-exynos5.o
 
 obj-$(CONFIG_PM)               += pm.o
diff --git a/arch/arm/mach-exynos/clock-exynos4.h 
b/arch/arm/mach-exynos/clock-exynos4.h
deleted file mode 100644
index bd12d5f..0000000
--- a/arch/arm/mach-exynos/clock-exynos4.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Copyright (c) 2011-2012 Samsung Electronics Co., Ltd.
- *             http://www.samsung.com
- *
- * Header file for exynos4 clock support
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#ifndef __ASM_ARCH_CLOCK_H
-#define __ASM_ARCH_CLOCK_H __FILE__
-
-#include <linux/clk.h>
-
-extern struct clksrc_clk exynos4_clk_aclk_133;
-extern struct clksrc_clk exynos4_clk_mout_mpll;
-
-extern struct clksrc_sources exynos4_clkset_mout_corebus;
-extern struct clksrc_sources exynos4_clkset_group;
-
-extern struct clk *exynos4_clkset_aclk_top_list[];
-extern struct clk *exynos4_clkset_group_list[];
-
-extern struct clksrc_sources exynos4_clkset_mout_g2d0;
-extern struct clksrc_sources exynos4_clkset_mout_g2d1;
-
-extern int exynos4_clksrc_mask_fsys_ctrl(struct clk *clk, int enable);
-extern int exynos4_clk_ip_fsys_ctrl(struct clk *clk, int enable);
-extern int exynos4_clk_ip_lcd1_ctrl(struct clk *clk, int enable);
-extern int exynos4_clk_ip_image_ctrl(struct clk *clk, int enable);
-extern int exynos4_clk_ip_dmc_ctrl(struct clk *clk, int enable);
-
-#endif /* __ASM_ARCH_CLOCK_H */
diff --git a/arch/arm/mach-exynos/clock-exynos4210.c 
b/arch/arm/mach-exynos/clock-exynos4210.c
deleted file mode 100644
index fed4c26..0000000
--- a/arch/arm/mach-exynos/clock-exynos4210.c
+++ /dev/null
@@ -1,188 +0,0 @@
-/*
- * Copyright (c) 2011-2012 Samsung Electronics Co., Ltd.
- *             http://www.samsung.com
- *
- * EXYNOS4210 - Clock support
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/kernel.h>
-#include <linux/err.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/syscore_ops.h>
-
-#include <plat/cpu-freq.h>
-#include <plat/clock.h>
-#include <plat/cpu.h>
-#include <plat/pll.h>
-#include <plat/s5p-clock.h>
-#include <plat/clock-clksrc.h>
-#include <plat/pm.h>
-
-#include <mach/hardware.h>
-#include <mach/map.h>
-#include <mach/regs-clock.h>
-#include <mach/sysmmu.h>
-
-#include "common.h"
-#include "clock-exynos4.h"
-
-#ifdef CONFIG_PM_SLEEP
-static struct sleep_save exynos4210_clock_save[] = {
-       SAVE_ITEM(EXYNOS4_CLKSRC_IMAGE),
-       SAVE_ITEM(EXYNOS4_CLKDIV_IMAGE),
-       SAVE_ITEM(EXYNOS4210_CLKSRC_LCD1),
-       SAVE_ITEM(EXYNOS4210_CLKDIV_LCD1),
-       SAVE_ITEM(EXYNOS4210_CLKSRC_MASK_LCD1),
-       SAVE_ITEM(EXYNOS4210_CLKGATE_IP_IMAGE),
-       SAVE_ITEM(EXYNOS4210_CLKGATE_IP_LCD1),
-       SAVE_ITEM(EXYNOS4210_CLKGATE_IP_PERIR),
-};
-#endif
-
-static struct clksrc_clk *sysclks[] = {
-       /* nothing here yet */
-};
-
-static struct clksrc_clk exynos4210_clk_mout_g2d0 = {
-       .clk    = {
-               .name           = "mout_g2d0",
-       },
-       .sources = &exynos4_clkset_mout_g2d0,
-       .reg_src = { .reg = EXYNOS4_CLKSRC_IMAGE, .shift = 0, .size = 1 },
-};
-
-static struct clksrc_clk exynos4210_clk_mout_g2d1 = {
-       .clk    = {
-               .name           = "mout_g2d1",
-       },
-       .sources = &exynos4_clkset_mout_g2d1,
-       .reg_src = { .reg = EXYNOS4_CLKSRC_IMAGE, .shift = 4, .size = 1 },
-};
-
-static struct clk *exynos4210_clkset_mout_g2d_list[] = {
-       [0] = &exynos4210_clk_mout_g2d0.clk,
-       [1] = &exynos4210_clk_mout_g2d1.clk,
-};
-
-static struct clksrc_sources exynos4210_clkset_mout_g2d = {
-       .sources        = exynos4210_clkset_mout_g2d_list,
-       .nr_sources     = ARRAY_SIZE(exynos4210_clkset_mout_g2d_list),
-};
-
-static int exynos4_clksrc_mask_lcd1_ctrl(struct clk *clk, int enable)
-{
-       return s5p_gatectrl(EXYNOS4210_CLKSRC_MASK_LCD1, clk, enable);
-}
-
-static struct clksrc_clk clksrcs[] = {
-       {
-               .clk            = {
-                       .name           = "sclk_sata",
-                       .id             = -1,
-                       .enable         = exynos4_clksrc_mask_fsys_ctrl,
-                       .ctrlbit        = (1 << 24),
-               },
-               .sources = &exynos4_clkset_mout_corebus,
-               .reg_src = { .reg = EXYNOS4_CLKSRC_FSYS, .shift = 24, .size = 1 
},
-               .reg_div = { .reg = EXYNOS4_CLKDIV_FSYS0, .shift = 20, .size = 
4 },
-       }, {
-               .clk            = {
-                       .name           = "sclk_fimd",
-                       .devname        = "exynos4-fb.1",
-                       .enable         = exynos4_clksrc_mask_lcd1_ctrl,
-                       .ctrlbit        = (1 << 0),
-               },
-               .sources = &exynos4_clkset_group,
-               .reg_src = { .reg = EXYNOS4210_CLKSRC_LCD1, .shift = 0, .size = 
4 },
-               .reg_div = { .reg = EXYNOS4210_CLKDIV_LCD1, .shift = 0, .size = 
4 },
-       }, {
-               .clk    = {
-                       .name           = "sclk_fimg2d",
-               },
-               .sources = &exynos4210_clkset_mout_g2d,
-               .reg_src = { .reg = EXYNOS4_CLKSRC_IMAGE, .shift = 8, .size = 1 
},
-               .reg_div = { .reg = EXYNOS4_CLKDIV_IMAGE, .shift = 0, .size = 4 
},
-       },
-};
-
-static struct clk init_clocks_off[] = {
-       {
-               .name           = "sataphy",
-               .id             = -1,
-               .parent         = &exynos4_clk_aclk_133.clk,
-               .enable         = exynos4_clk_ip_fsys_ctrl,
-               .ctrlbit        = (1 << 3),
-       }, {
-               .name           = "sata",
-               .id             = -1,
-               .parent         = &exynos4_clk_aclk_133.clk,
-               .enable         = exynos4_clk_ip_fsys_ctrl,
-               .ctrlbit        = (1 << 10),
-       }, {
-               .name           = "fimd",
-               .devname        = "exynos4-fb.1",
-               .enable         = exynos4_clk_ip_lcd1_ctrl,
-               .ctrlbit        = (1 << 0),
-       }, {
-               .name           = SYSMMU_CLOCK_NAME,
-               .devname        = SYSMMU_CLOCK_DEVNAME(2d, 14),
-               .enable         = exynos4_clk_ip_image_ctrl,
-               .ctrlbit        = (1 << 3),
-       }, {
-               .name           = SYSMMU_CLOCK_NAME,
-               .devname        = SYSMMU_CLOCK_DEVNAME(fimd1, 11),
-               .enable         = exynos4_clk_ip_lcd1_ctrl,
-               .ctrlbit        = (1 << 4),
-       }, {
-               .name           = "fimg2d",
-               .enable         = exynos4_clk_ip_image_ctrl,
-               .ctrlbit        = (1 << 0),
-       },
-};
-
-#ifdef CONFIG_PM_SLEEP
-static int exynos4210_clock_suspend(void)
-{
-       s3c_pm_do_save(exynos4210_clock_save, 
ARRAY_SIZE(exynos4210_clock_save));
-
-       return 0;
-}
-
-static void exynos4210_clock_resume(void)
-{
-       s3c_pm_do_restore_core(exynos4210_clock_save, 
ARRAY_SIZE(exynos4210_clock_save));
-}
-
-#else
-#define exynos4210_clock_suspend NULL
-#define exynos4210_clock_resume NULL
-#endif
-
-static struct syscore_ops exynos4210_clock_syscore_ops = {
-       .suspend        = exynos4210_clock_suspend,
-       .resume         = exynos4210_clock_resume,
-};
-
-void __init exynos4210_register_clocks(void)
-{
-       int ptr;
-
-       exynos4_clk_mout_mpll.reg_src.reg = EXYNOS4_CLKSRC_CPU;
-       exynos4_clk_mout_mpll.reg_src.shift = 8;
-       exynos4_clk_mout_mpll.reg_src.size = 1;
-
-       for (ptr = 0; ptr < ARRAY_SIZE(sysclks); ptr++)
-               s3c_register_clksrc(sysclks[ptr], 1);
-
-       s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
-
-       s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
-       s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
-
-       register_syscore_ops(&exynos4210_clock_syscore_ops);
-}
diff --git a/arch/arm/mach-exynos/clock-exynos4212.c 
b/arch/arm/mach-exynos/clock-exynos4212.c
deleted file mode 100644
index 8fba0b5..0000000
--- a/arch/arm/mach-exynos/clock-exynos4212.c
+++ /dev/null
@@ -1,192 +0,0 @@
-/*
- * Copyright (c) 2011-2012 Samsung Electronics Co., Ltd.
- *             http://www.samsung.com
- *
- * EXYNOS4212 - Clock support
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/kernel.h>
-#include <linux/err.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/syscore_ops.h>
-
-#include <plat/cpu-freq.h>
-#include <plat/clock.h>
-#include <plat/cpu.h>
-#include <plat/pll.h>
-#include <plat/s5p-clock.h>
-#include <plat/clock-clksrc.h>
-#include <plat/pm.h>
-
-#include <mach/hardware.h>
-#include <mach/map.h>
-#include <mach/regs-clock.h>
-#include <mach/sysmmu.h>
-
-#include "common.h"
-#include "clock-exynos4.h"
-
-#ifdef CONFIG_PM_SLEEP
-static struct sleep_save exynos4212_clock_save[] = {
-       SAVE_ITEM(EXYNOS4_CLKSRC_IMAGE),
-       SAVE_ITEM(EXYNOS4_CLKDIV_IMAGE),
-       SAVE_ITEM(EXYNOS4212_CLKGATE_IP_IMAGE),
-       SAVE_ITEM(EXYNOS4212_CLKGATE_IP_PERIR),
-};
-#endif
-
-static int exynos4212_clk_ip_isp0_ctrl(struct clk *clk, int enable)
-{
-       return s5p_gatectrl(EXYNOS4_CLKGATE_IP_ISP0, clk, enable);
-}
-
-static int exynos4212_clk_ip_isp1_ctrl(struct clk *clk, int enable)
-{
-       return s5p_gatectrl(EXYNOS4_CLKGATE_IP_ISP1, clk, enable);
-}
-
-static struct clk *clk_src_mpll_user_list[] = {
-       [0] = &clk_fin_mpll,
-       [1] = &exynos4_clk_mout_mpll.clk,
-};
-
-static struct clksrc_sources clk_src_mpll_user = {
-       .sources        = clk_src_mpll_user_list,
-       .nr_sources     = ARRAY_SIZE(clk_src_mpll_user_list),
-};
-
-static struct clksrc_clk clk_mout_mpll_user = {
-       .clk = {
-               .name           = "mout_mpll_user",
-       },
-       .sources        = &clk_src_mpll_user,
-       .reg_src        = { .reg = EXYNOS4_CLKSRC_CPU, .shift = 24, .size = 1 },
-};
-
-static struct clksrc_clk exynos4x12_clk_mout_g2d0 = {
-       .clk    = {
-               .name           = "mout_g2d0",
-       },
-       .sources = &exynos4_clkset_mout_g2d0,
-       .reg_src = { .reg = EXYNOS4_CLKSRC_DMC, .shift = 20, .size = 1 },
-};
-
-static struct clksrc_clk exynos4x12_clk_mout_g2d1 = {
-       .clk    = {
-               .name           = "mout_g2d1",
-       },
-       .sources = &exynos4_clkset_mout_g2d1,
-       .reg_src = { .reg = EXYNOS4_CLKSRC_DMC, .shift = 24, .size = 1 },
-};
-
-static struct clk *exynos4x12_clkset_mout_g2d_list[] = {
-       [0] = &exynos4x12_clk_mout_g2d0.clk,
-       [1] = &exynos4x12_clk_mout_g2d1.clk,
-};
-
-static struct clksrc_sources exynos4x12_clkset_mout_g2d = {
-       .sources        = exynos4x12_clkset_mout_g2d_list,
-       .nr_sources     = ARRAY_SIZE(exynos4x12_clkset_mout_g2d_list),
-};
-
-static struct clksrc_clk *sysclks[] = {
-       &clk_mout_mpll_user,
-};
-
-static struct clksrc_clk clksrcs[] = {
-       {
-               .clk    = {
-                       .name           = "sclk_fimg2d",
-               },
-               .sources = &exynos4x12_clkset_mout_g2d,
-               .reg_src = { .reg = EXYNOS4_CLKSRC_DMC, .shift = 28, .size = 1 
},
-               .reg_div = { .reg = EXYNOS4_CLKDIV_DMC1, .shift = 0, .size = 4 
},
-       },
-};
-
-static struct clk init_clocks_off[] = {
-       {
-               .name           = SYSMMU_CLOCK_NAME,
-               .devname        = SYSMMU_CLOCK_DEVNAME(2d, 14),
-               .enable         = exynos4_clk_ip_dmc_ctrl,
-               .ctrlbit        = (1 << 24),
-       }, {
-               .name           = SYSMMU_CLOCK_NAME,
-               .devname        = SYSMMU_CLOCK_DEVNAME(isp, 9),
-               .enable         = exynos4212_clk_ip_isp0_ctrl,
-               .ctrlbit        = (7 << 8),
-       }, {
-               .name           = SYSMMU_CLOCK_NAME2,
-               .devname        = SYSMMU_CLOCK_DEVNAME(isp, 9),
-               .enable         = exynos4212_clk_ip_isp1_ctrl,
-               .ctrlbit        = (1 << 4),
-       }, {
-               .name           = "flite",
-               .devname        = "exynos-fimc-lite.0",
-               .enable         = exynos4212_clk_ip_isp0_ctrl,
-               .ctrlbit        = (1 << 4),
-       }, {
-               .name           = "flite",
-               .devname        = "exynos-fimc-lite.1",
-               .enable         = exynos4212_clk_ip_isp0_ctrl,
-               .ctrlbit        = (1 << 3),
-       }, {
-               .name           = "fimg2d",
-               .enable         = exynos4_clk_ip_dmc_ctrl,
-               .ctrlbit        = (1 << 23),
-       },
-};
-
-#ifdef CONFIG_PM_SLEEP
-static int exynos4212_clock_suspend(void)
-{
-       s3c_pm_do_save(exynos4212_clock_save, 
ARRAY_SIZE(exynos4212_clock_save));
-
-       return 0;
-}
-
-static void exynos4212_clock_resume(void)
-{
-       s3c_pm_do_restore_core(exynos4212_clock_save, 
ARRAY_SIZE(exynos4212_clock_save));
-}
-
-#else
-#define exynos4212_clock_suspend NULL
-#define exynos4212_clock_resume NULL
-#endif
-
-static struct syscore_ops exynos4212_clock_syscore_ops = {
-       .suspend        = exynos4212_clock_suspend,
-       .resume         = exynos4212_clock_resume,
-};
-
-void __init exynos4212_register_clocks(void)
-{
-       int ptr;
-
-       /* usbphy1 is removed */
-       exynos4_clkset_group_list[4] = NULL;
-
-       /* mout_mpll_user is used */
-       exynos4_clkset_group_list[6] = &clk_mout_mpll_user.clk;
-       exynos4_clkset_aclk_top_list[0] = &clk_mout_mpll_user.clk;
-
-       exynos4_clk_mout_mpll.reg_src.reg = EXYNOS4_CLKSRC_DMC;
-       exynos4_clk_mout_mpll.reg_src.shift = 12;
-       exynos4_clk_mout_mpll.reg_src.size = 1;
-
-       for (ptr = 0; ptr < ARRAY_SIZE(sysclks); ptr++)
-               s3c_register_clksrc(sysclks[ptr], 1);
-
-       s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
-
-       s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
-       s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
-
-       register_syscore_ops(&exynos4212_clock_syscore_ops);
-}
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index 535a7ed..2b1b225 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -67,7 +67,6 @@ static const char name_exynos5440[] = "EXYNOS5440";
 static void exynos4_map_io(void);
 static void exynos5_map_io(void);
 static void exynos5440_map_io(void);
-static void exynos4_init_clocks(int xtal);
 static void exynos5_init_clocks(int xtal);
 static void exynos4_init_uarts(struct s3c2410_uartcfg *cfg, int no);
 static int exynos_init(void);
@@ -77,7 +76,6 @@ static struct cpu_table cpu_ids[] __initdata = {
                .idcode         = EXYNOS4210_CPU_ID,
                .idmask         = EXYNOS4_CPU_MASK,
                .map_io         = exynos4_map_io,
-               .init_clocks    = exynos4_init_clocks,
                .init_uarts     = exynos4_init_uarts,
                .init           = exynos_init,
                .name           = name_exynos4210,
@@ -85,7 +83,6 @@ static struct cpu_table cpu_ids[] __initdata = {
                .idcode         = EXYNOS4212_CPU_ID,
                .idmask         = EXYNOS4_CPU_MASK,
                .map_io         = exynos4_map_io,
-               .init_clocks    = exynos4_init_clocks,
                .init_uarts     = exynos4_init_uarts,
                .init           = exynos_init,
                .name           = name_exynos4212,
@@ -93,7 +90,6 @@ static struct cpu_table cpu_ids[] __initdata = {
                .idcode         = EXYNOS4412_CPU_ID,
                .idmask         = EXYNOS4_CPU_MASK,
                .map_io         = exynos4_map_io,
-               .init_clocks    = exynos4_init_clocks,
                .init_uarts     = exynos4_init_uarts,
                .init           = exynos_init,
                .name           = name_exynos4412,
@@ -432,22 +428,6 @@ static void __init exynos5_map_io(void)
                iotable_init(exynos5250_iodesc, ARRAY_SIZE(exynos5250_iodesc));
 }
 
-static void __init exynos4_init_clocks(int xtal)
-{
-       printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
-
-       s3c24xx_register_baseclocks(xtal);
-       s5p_register_clocks(xtal);
-
-       if (soc_is_exynos4210())
-               exynos4210_register_clocks();
-       else if (soc_is_exynos4212() || soc_is_exynos4412())
-               exynos4212_register_clocks();
-
-       exynos4_register_clocks();
-       exynos4_setup_clocks();
-}
-
 static void __init exynos5440_map_io(void)
 {
        iotable_init(exynos5440_iodesc0, ARRAY_SIZE(exynos5440_iodesc0));
@@ -455,6 +435,7 @@ static void __init exynos5440_map_io(void)
 
 static void __init exynos5_init_clocks(int xtal)
 {
+#ifndef CONFIG_COMMON_CLK
        printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
 
        s3c24xx_register_baseclocks(xtal);
@@ -462,6 +443,7 @@ static void __init exynos5_init_clocks(int xtal)
 
        exynos5_register_clocks();
        exynos5_setup_clocks();
+#endif
 }
 
 void __init exynos_timer_init(void)
@@ -472,6 +454,7 @@ void __init exynos_timer_init(void)
         */
        if (!of_have_populated_dt() && (soc_is_exynos4210() ||
                soc_is_exynos4212() || soc_is_exynos4412())) {
+               exynos4_clk_init();
                exynos_mct_init();
                return;
        }
@@ -481,6 +464,10 @@ void __init exynos_timer_init(void)
                if (arch_timer_of_register())
                        panic("%s: could not initialize timer\n", __func__);
        } else {
+               if (of_machine_is_compatible("samsung,exynos4210") ||
+                              of_machine_is_compatible("samsung,exynos4212") ||
+                              of_machine_is_compatible("samsung,exynos4412"))
+                       exynos4_clk_init();
                exynos_mct_init();
        }
 }
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index 687b6f0..e3ed6bb 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -23,6 +23,23 @@ void exynos5_restart(char mode, const char *cmd);
 void exynos_init_late(void);
 extern void exynos_mct_init(void);
 
+#ifdef CONFIG_COMMON_CLK
+extern void exynos4_clk_init(void);
+extern void exynos4_clk_register_fixed_ext(unsigned long, unsigned long);
+#else
+/* todo: remove these after adding common clock support for exynos5 platforms 
*/
+static inline void exynos4_clk_init(void)
+{
+       return;
+}
+
+static inline void exynos4_clk_register_fixed_ext(unsigned long xxti_f,
+                                                       unsigned long xusbxti)
+{
+       return;
+}
+#endif
+
 void exynos_firmware_init(void);
 
 #ifdef CONFIG_PM_GENERIC_DOMAINS
diff --git a/arch/arm/mach-exynos/mach-armlex4210.c 
b/arch/arm/mach-exynos/mach-armlex4210.c
index 4d0ea70..e8dce5c 100644
--- a/arch/arm/mach-exynos/mach-armlex4210.c
+++ b/arch/arm/mach-exynos/mach-armlex4210.c
@@ -178,7 +178,6 @@ static void __init armlex4210_smsc911x_init(void)
 static void __init armlex4210_map_io(void)
 {
        exynos_init_io(NULL, 0);
-       s3c24xx_init_clocks(24000000);
        s3c24xx_init_uarts(armlex4210_uartcfgs,
                           ARRAY_SIZE(armlex4210_uartcfgs));
 }
diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c 
b/arch/arm/mach-exynos/mach-exynos4-dt.c
index 86d914c..a7471ae 100644
--- a/arch/arm/mach-exynos/mach-exynos4-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos4-dt.c
@@ -86,7 +86,6 @@ static const struct of_dev_auxdata exynos4_auxdata_lookup[] 
__initconst = {
 static void __init exynos4_dt_map_io(void)
 {
        exynos_init_io(NULL, 0);
-       s3c24xx_init_clocks(24000000);
 }
 
 static void __init exynos4_dt_machine_init(void)
diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c
index 03d5ddf..8695d33 100644
--- a/arch/arm/mach-exynos/mach-nuri.c
+++ b/arch/arm/mach-exynos/mach-nuri.c
@@ -1331,7 +1331,6 @@ static struct platform_device *nuri_devices[] __initdata 
= {
 static void __init nuri_map_io(void)
 {
        exynos_init_io(NULL, 0);
-       s3c24xx_init_clocks(clk_xusbxti.rate);
        s3c24xx_init_uarts(nuri_uartcfgs, ARRAY_SIZE(nuri_uartcfgs));
 }
 
diff --git a/arch/arm/mach-exynos/mach-origen.c 
b/arch/arm/mach-exynos/mach-origen.c
index 97dcf6f..5d9479d 100644
--- a/arch/arm/mach-exynos/mach-origen.c
+++ b/arch/arm/mach-exynos/mach-origen.c
@@ -755,7 +755,6 @@ static void s5p_tv_setup(void)
 static void __init origen_map_io(void)
 {
        exynos_init_io(NULL, 0);
-       s3c24xx_init_clocks(clk_xusbxti.rate);
        s3c24xx_init_uarts(origen_uartcfgs, ARRAY_SIZE(origen_uartcfgs));
 }
 
diff --git a/arch/arm/mach-exynos/mach-smdk4x12.c 
b/arch/arm/mach-exynos/mach-smdk4x12.c
index 08409b0..f67f541 100644
--- a/arch/arm/mach-exynos/mach-smdk4x12.c
+++ b/arch/arm/mach-exynos/mach-smdk4x12.c
@@ -323,7 +323,6 @@ static struct platform_device *smdk4x12_devices[] 
__initdata = {
 static void __init smdk4x12_map_io(void)
 {
        exynos_init_io(NULL, 0);
-       s3c24xx_init_clocks(clk_xusbxti.rate);
        s3c24xx_init_uarts(smdk4x12_uartcfgs, ARRAY_SIZE(smdk4x12_uartcfgs));
 }
 
diff --git a/arch/arm/mach-exynos/mach-smdkv310.c 
b/arch/arm/mach-exynos/mach-smdkv310.c
index d791e5d..a1be874 100644
--- a/arch/arm/mach-exynos/mach-smdkv310.c
+++ b/arch/arm/mach-exynos/mach-smdkv310.c
@@ -372,7 +372,6 @@ static void s5p_tv_setup(void)
 static void __init smdkv310_map_io(void)
 {
        exynos_init_io(NULL, 0);
-       s3c24xx_init_clocks(clk_xusbxti.rate);
        s3c24xx_init_uarts(smdkv310_uartcfgs, ARRAY_SIZE(smdkv310_uartcfgs));
 }
 
diff --git a/arch/arm/mach-exynos/mach-universal_c210.c 
b/arch/arm/mach-exynos/mach-universal_c210.c
index 9e3340f..3999c16 100644
--- a/arch/arm/mach-exynos/mach-universal_c210.c
+++ b/arch/arm/mach-exynos/mach-universal_c210.c
@@ -1093,7 +1093,6 @@ static struct platform_device *universal_devices[] 
__initdata = {
 static void __init universal_map_io(void)
 {
        exynos_init_io(NULL, 0);
-       s3c24xx_init_clocks(clk_xusbxti.rate);
        s3c24xx_init_uarts(universal_uartcfgs, ARRAY_SIZE(universal_uartcfgs));
        s5p_set_timer_source(S5P_PWM2, S5P_PWM4);
 }
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index a9d5216..a034560 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -25,7 +25,7 @@ config PLAT_S5P
        select PLAT_SAMSUNG
        select S3C_GPIO_TRACK
        select S5P_GPIO_DRVSTR
-       select SAMSUNG_CLKSRC
+       select SAMSUNG_CLKSRC if !COMMON_CLK
        select SAMSUNG_GPIOLIB_4BIT
        select SAMSUNG_IRQ_VIC_TIMER
        help
@@ -89,7 +89,7 @@ config SAMSUNG_CLKSRC
          used by newer systems such as the S3C64XX.
 
 config S5P_CLOCK
-       def_bool (ARCH_S5P64X0 || ARCH_S5PC100 || ARCH_S5PV210 || ARCH_EXYNOS)
+       def_bool ((ARCH_S5P64X0 || ARCH_S5PC100 || ARCH_S5PV210 || ARCH_EXYNOS) 
&& !COMMON_CLK)
        help
          Support common clock part for ARCH_S5P and ARCH_EXYNOS SoCs
 
-- 
1.7.5.4

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